:root {
            --hdsq1-primary: #1A73E8;
            --hdsq1-accent: #1A73E8;
            --hdsq1-tertiary: #FBBC05;
            --hdsq1-success: #34A853;
            --hdsq1-error: #EA4335;
            --hdsq1-bg: #FFFFFF;
            --hdsq1-text: #202124;
            --hdsq1-gray: #5F6368;
            --hdsq1-light-gray: #F8F9FA;
            --hdsq1-glass: rgba(255, 255, 255, 0.8);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            color: var(--hdsq1-text);
            line-height: 1.7;
            background-color: var(--hdsq1-bg);
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 排版系统 */
        h1, h2, h3 {
            font-weight: 700;
            line-height: 1.3;
            white-space: normal;
            word-break: break-word;
        }

        p {
            line-height: 1.8;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* 布局容器 */
        .hdsq1-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .hdsq1-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
            background: transparent;
        }

        .hdsq1-header.scrolled {
            background: var(--hdsq1-glass);
            backdrop-filter: blur(12px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }

        .hdsq1-nav-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            min-width: 0;
        }

        .hdsq1-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .hdsq1-logo img {
            height: 32px;
            display: block;
        }

        .hdsq1-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .hdsq1-menu a {
            text-decoration: none;
            color: var(--hdsq1-gray);
            font-size: 14px;
            font-weight: 300;
            letter-spacing: 0.5px;
            transition: color 0.3s;
        }

        .hdsq1-menu a:hover, .hdsq1-menu a.active {
            color: var(--hdsq1-primary);
        }

        /* Hero 区 - 非对称设计 */
        .hdsq1-hero {
            padding-top: 140px;
            padding-bottom: 96px;
            position: relative;
            background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
            overflow: hidden;
        }

        .hdsq1-hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 50%;
            height: 80%;
            background: var(--hdsq1-tertiary);
            opacity: 0.05;
            border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
            animation: morph 15s ease-in-out infinite;
            z-index: 1;
        }

        @keyframes morph {
            0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
            50% { border-radius: 70% 30% 40% 60% / 50% 60% 40% 50%; }
            100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
        }

        .hdsq1-hero-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hdsq1-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            color: var(--hdsq1-text);
            margin-bottom: 24px;
        }

        .hdsq1-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--hdsq1-gray);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .hdsq1-btn-download {
            display: inline-block;
            padding: 16px 48px;
            background: var(--hdsq1-primary);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(26, 115, 232, 0.3);
            animation: breathe 3s infinite;
            transition: transform 0.3s;
        }

        @keyframes breathe {
            0% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.4); }
            70% { box-shadow: 0 0 0 15px rgba(26, 115, 232, 0); }
            100% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0); }
        }

        .hdsq1-btn-download:hover {
            transform: translateY(-3px);
        }

        /* 教程核心内容区块 */
        .hdsq1-section {
            padding: 96px 0;
            position: relative;
        }

        .hdsq1-tutorial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .hdsq1-card {
            background: white;
            padding: 40px;
            border-radius: 20px;
            border: 1px solid #eee;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            position: relative;
            min-width: 0;
        }

        .hdsq1-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

        .hdsq1-card-icon {
            width: 56px;
            height: 56px;
            background: var(--hdsq1-light-gray);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--hdsq1-primary);
            font-size: 24px;
            font-weight: bold;
        }

        /* 模拟控制台样式 */
        .hdsq1-console-mock {
            background: #202124;
            border-radius: 12px;
            padding: 20px;
            color: #bdc1c6;
            font-family: 'Consolas', 'Monaco', monospace;
            font-size: 14px;
            margin-top: 24px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            overflow: hidden;
            word-break: break-all;
        }

        .hdsq1-console-line {
            margin-bottom: 8px;
            display: flex;
            gap: 10px;
        }

        .hdsq1-console-prompt { color: #8ab4f8; }
        .hdsq1-console-output { color: #f8f9fa; }
        .hdsq1-console-comment { color: #9aa0a6; }

        /* 非对称流体形状背景 */
        .hdsq1-liquid-shape {
            position: absolute;
            z-index: -1;
            filter: blur(60px);
        }

        /* 教程步骤 */
        .hdsq1-step-section {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            align-items: center;
            margin-bottom: 80px;
            min-width: 0;
        }

        .hdsq1-step-content {
            flex: 1;
            min-width: 300px;
        }

        .hdsq1-step-visual {
            flex: 1;
            min-width: 300px;
            background: var(--hdsq1-light-gray);
            border-radius: 24px;
            padding: 48px;
            border: 1px solid #e0e0e0;
        }

        .hdsq1-badge {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(26, 115, 232, 0.1);
            color: var(--hdsq1-primary);
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        /* 页脚 */
        .hdsq1-footer {
            background: #f8f9fa;
            padding: 80px 0 40px;
            border-top: 1px solid #eee;
        }

        .hdsq1-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .hdsq1-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--hdsq1-text);
            margin-bottom: 20px;
        }

        .hdsq1-footer-links {
            list-style: none;
        }

        .hdsq1-footer-links li {
            margin-bottom: 12px;
        }

        .hdsq1-footer-links a {
            text-decoration: none;
            color: var(--hdsq1-gray);
            font-size: 14px;
            transition: color 0.3s;
        }

        .hdsq1-footer-links a:hover {
            color: var(--hdsq1-primary);
        }

        .hdsq1-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #e0e0e0;
            color: #9aa0a6;
            font-size: 13px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .hdsq1-menu {
                display: none; /* 简化演示，手机端隐藏菜单 */
            }
            .hdsq1-hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hdsq1-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hdsq1-step-section {
                flex-direction: column;
            }
            .hdsq1-step-visual {
                width: 100%;
                padding: 24px;
            }
        }